Pocket Punch- Poly Pipe Punch and Emitter Insert The Greatest Drip Irrigation Punch Ever. Punch Holes with ease. Install Emitters or Barbs without hurting your fingers !!! Install Emitters with 1/4 in. tubing attached. Remove Emitters if you goofed. ? No other Drip Punch can do what this one will do... Easiest Punch Avaliable.